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  • iPhone switch statement using enum

    - by Boris
    I have defined an enum in a header file of a class : typedef enum{ RED = 0, BLUE, Green } Colors; - (void) switchTest:(Colors)testColor; and in the implementation file I have : - (void) switchTest:(Colors)testColor{ if(testColor == RED){ NSLog(@"Red selected"); } switch(testColor){ case RED: NSLog(@"Red selected again !"); break; default: NSLog(@"default selected"); break; } } My code compiles correctly without warrnings. When calling the switchTest method with RED, the output is : "Red selected" but once the first line of the switch runs, the application quits unexpectedly and without warrnings/errors. I don't mind using if/else syntax but I would like to understand my mistake.

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  • Modifying records in my migration throws an authlogic error

    - by nfm
    I'm adding some columns to one of my database tables, and then populating those columns: def self.up add_column :contacts, :business_id, :integer add_column :contacts, :business_type, :string Contact.reset_column_information Contact.all.each do |contact| contact.update_attributes(:business_id => contact.client_id, :business_type => 'Client') end remove_column :contacts, :client_id end The line contact.update_attributes is causing the following Authlogic error: You must activate the Authlogic::Session::Base.controller with a controller object before creating objects I have no idea what is going on here - I'm not using a controller method to modify each row in the table. Nor am I creating new objects. The error doesn't occur if the contacts table is empty. I've had a google and it seems like this error can occur when you run your controller tests, and is fixed by adding before_filter :activate_authlogic to them, but this doesn't seem relevant in my case. Any ideas? I'm stumped.

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  • Unable to use opacity animation w/ position:relative on children

    - by chovy
    Consider the following (applies to all IE6+ browsers -- including IE8): <div id="picture"> <div class="thumb" style="position: relative;"><img .. /></div> <p>Some description</p> </div> When I animate the opacity down to 0 it only works if I change the .thumb class to position: static. This has bigger problems because I use that to constrain absolutely positioned children to that container. I've tried all the hacks I have discovered, none work (bg-color, zoom, etc). You can see an example here: http://chovy.dyndns.org/test/opacity3.html I need to use position: relative on the real world case throughout the container that is getting the animation.

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  • In symfony/doctrine's schema.yml, where should I put onDelete: CASCADE for a many-to-many relationsh

    - by nselikoff
    I have a many-to-many relationship defined in my Symfony (using doctrine) project between Orders and Upgrades (an Order can be associated with zero or more Upgrades, and an Upgrade can apply to zero or more Orders). # schema.yml Order: columns: order_id: {...} relations: Upgrades: class: Upgrade local: order_id foreign: upgrade_id refClass: OrderUpgrade Upgrade: columns: upgrade_id: {...} relations: Orders: class: Order local: upgrade_id foreign: order_id refClass: OrderUpgrade OrderUpgrade: columns: order_id: {...} upgrade_id: {...} I want to set up delete cascade behavior so that if I delete an Order or an Upgrade, all of the related OrderUpgrades are deleted. Where do I put onDelete: CASCADE? Usually I would put it at the end of the relations section, but that would seem to imply in this case that deleting Orders would cascade to delete Upgrades. Is Symfony + Doctrine smart enough to know what I'm wanting if I put onDelete: CASCADE in the above relations sections of schema.yml?

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  • best analogy to explain free software floss to non geeks

    - by opensas
    How do you explain free libre open source software to a computer illiterate guy? Two well known analogies I've often heard are: free software as a meal recipe, a set of instructions for you to inspect, learn, put into practice, and improve... versus a canned meal that you can only swallow without even knowing what you're eating... and the other is comparing privative software to a car that you aren't allowed to open it's trunk to see inside in case anything goes wrong... I'd like to know what other analogies you know that might help us explain free software to non geeks saludos sas

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  • Preserve "long" spaces in PDFBox text extraction

    - by Thilo
    I am using PDFBox to extract text from PDF. The PDF has a tabular structure, which is quite simple and columns are also very widely spaced from each-other This works really well, except that all kinds of horizontal space gets converted into a single space character, so that I cannot tell columns apart anymore (space within words in a column looks just like space between columns). I appreciate that a general solution is very hard, but in this case the columns are really far apart so that having a simple differentiation between "long spaces" and "space between words" would be enough. Is there a way to tell PDFBox to turn horizontal whitespace of more then x inches into something other than a single space? A proportional approach (x inch become y spaces) would also work.

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  • Google groups not finding discussion thread but regular google search does?

    - by Mathias Lin
    I'm having a problem with google groups and finding my own discussion threads. I go to the google group (in my case Android developer group) web view and try to search for my thread by entering the extact title of my thread. But it doesn't appear in the search results. On the other hand, when I search for the same title in the regular google web search, I get the thread right on top of the result list. I thought it might take a while until the groups index all new threads, but still after a few days, it still wouldn't show up. Sample: My thread is here: http://groups.google.com/group/android-developers/browse_thread/thread/0ab41d5056a25ce7 Doing a search for it in Google groups (will give one result, but not mine): http://groups.google.com/group/android-developers/search?group=android-developers&q=Strange+behaviour+with+mediaplayer+and+seekTo&qt_g=Search+this+group Search in Google web search (shows my thread as first result): http://www.google.de/search?sourceid=chrome&ie=UTF-8&q=Strange+behaviour+with+mediaplayer+and+seekTo

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  • Modify strings in Rails?

    - by Daniel O'Connor
    Hey everyone, So I'm new to Rails (teaching myself as a senior project in high school), and I'm trying to figure out how to modify these strings. Let's say someone writes the following string in a form: "you know you are a geek when" How can I automatically change it to this: "You know you are a geek when..."? I need Rails to check the case of the first letter and check for the three dots then modify the string as necessary. I've looked here, but I can't find anything that would work. Thanks a lot!

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  • Recommendation for serial communications in Access 2007

    - by bglenn
    I need to communicate with a bar code scanner connected over a serial port in Microsoft Access. In older versions of Access I was able to use a wrapper around MSCOMM32.ocx that no longer seems to work. I can't use wedge communication because I need to use ACK/NACK which is only supported through the RS232 interface and I need to send messages to the scanner, which is also only supported through the RS232 interface. Are there any controls in widespread use that support serial communication in Access 2007? EDIT: In case anyone comes across this, the newest version of MSCOMM32.ocx (I believe dated 3/09) still works fine as of this writing. It is older versions of MSCOMM32.ocx that do not work.

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  • msvsmon is locking up my pdbs

    - by Sam Saffron
    During developement of my media center plugin (which has a few custom build steps to gac stuff and such) msvsmon has a rather annoying behaviour. First compilation usually goes well, but subsequent compilations complain about myplugin.pdb being locked Error 1 Unexpected error creating debug information file 'C:\Users\sam\source\myfile.PDB' -- 'C:\Users\sam\source\obj\Debug\myfile.pdb: The process cannot access the file because it is being used by another process. If I exit VS and nuke the object directory, I am able to compile again. Also, if I kill off msvsmon.exe I am able to compile again (but can not debug) Has anyone seen this error? Are there any workarounds? I already disabled live semantic errors, just in case.

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  • Using CGRectIntersectsRect for collision detection

    - by user309030
    Hi guys, I've got a long rectangular image which is rotated at different kind of angles. However the frame of the rectangular image does not rotate along with the image and instead, the rotation causes the frame to to become larger to fit the rotated image. So when I used CGRectIntersectsRect, the collision detection is totally off because the other image colliding with the rectangular image will collide before it even reaches the visible area of the rect image. In case you don't really know what I'm talking about, have a look at the ascii drawing: normal rectangular image frame, O - pixels, |, – - frame |----------| |OOOOOOOOOO| |----------| after rotation |----------| |O | | O | | O | | O | | O | | O | | O | | O | | O | |----------| I've read through some of the collision articles but all of them are talking about collision with a normal straight rectangle and what I really want is collision with a slanted image, preferably pixel collision detection. TIA for any suggestions made.

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  • jquery $(window).width() and $(window).height() return different values when viewport has not been r

    - by Manca Weeks
    I am writing a site using jquery that repeatedly repeatedly calls $(window).width() and $(window).height() to position and size elements based on the viewport size... In troubleshooting I discovered that I am getting slightly different viewport size reports in repeated calls to the above jquery functions when the viewport is not resized... Wondering if there is any special case anyone knows of when this happens, or if this is just the way it is. The difference in sizes reported are 20px or less, it appears. It happens in Safari 4.0.4, Firefox 3.6.2 and Chrome 5.0.342.7 beta on Mac OS X 10.6.2... I didn't test other browsers yet because it doesn't appear to be specific to the browser. I was also unable to figure out what the difference depends upon - if it isn't the viewport size, could there be another factor that makes the results differ? Any insight would be appreciated... Thanks MAnca

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  • How to change page author in wordpress?

    - by GaVrA
    Ofc i know how to do that, but the thing is that i am using "User Role Editor" and i have one user group that can read and edit published pages. Now, i will be adding all the pages on that site, and we will have several users that will need to have only one page they can edit, so i need for that page to change "Page author" to that user. In case you didnt know, when user have "Edit published pages" enabled they can edit only pages where they are listed as author. Problem is i can only do that by going in phpmyadmin and changing the page_author field to the id of that user because that user group, like i said, can only read and edit published pages. That is why i can not change page author from "Edit page" page to user from that user group. So my question is: does anyone know any solution to this problem which does not involve me going to phpmyadmin and changing the id for page_author there?

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  • How does one bind to an List<DataRow> collection in WPF XAML?

    - by Elan
    Using a DataTable or DataView, one can specify the binding in XAML for example as follows: <Image Source="{Binding Thumbnail}" /> In my case I have created a List collection of DataRow objects and the above is not working. This is my data source: List<DataRow> I could of course convert the List< to a DataTable, but I am curious if there was a way to specify the binding in XAML to access the "Thumbnail" column within the DataRow that is stored in a List< collection. Elan

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  • How to debug CSS/Javascript hover issues

    - by Jason Creighton
    I often find myself wanting to debug CSS layout issues that involve DOM changes caused by Javascript in reaction to a hover event or different CSS rules applying due to the :hover selector. Normally, I'd use Firebug to inspect the element that's giving me trouble and see what its CSS properties were, and where those properties come from. However, when hovering is involved, it becomes impossible, because as soon as you move your mouse down to the Firebug panel, the elements you're interested in are no longer hovered, the CSS rules that apply are different, and (in the case of JS hovers) the DOM is changed. Is there any way I can "freeze" the state of the DOM and application of :hover in order to inspect the DOM as it was during a hover event? Any other ideas on how to debug this sort of issue are welcome, of course.

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  • ERD-CLASS design

    - by Mahesh
    Hello guyz,i am new to daatbase and class diagram.I just get scenarios from internet and try to develop ERD and Class Diagram for them.But the following scenario has caused me some problems, and i am not sure about my design. "Whenever an employee fills leave application form, the leave application should be appeared for approval to his/her team leader. Team Leader has the option to change the date of requested leave and to approve or reject the leave. Employee also has the option to change date of previously unapproved leaves or to cancel any of unapproved leave. In case of team leader, he can approve his own leaves. Management should be able to create categories of leaves like (Casual, Sick, Planned work, etc) and should be able to adjust the days allocated to each type of leave". I have identified these as entities for ERD 1) Employee(I think i dont need to make entity for Technical lead,since he is an employee) 2) LeaveHistory 3) LeaveCategory Plz correct me if the system need more classes or entities

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  • Move constructor and assignment operator: why no default for derived classes?

    - by doublep
    Why there is default move constructor or assignment operator not created for derived classes? To demonstrate what I mean; having this setup code: #include <utility> struct A { A () { } A (A&&) { throw 0; } A& operator= (A&&) { throw 0; } }; struct B : A { }; either of the following lines throws: A x (std::move (A ()); A x; x = A (); but neither of the following does: B x (std::move (B ()); B x; x = B (); In case it matters, I tested with GCC 4.4.

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  • Diagonal of polygon is inside or outside?

    - by Himadri
    I have three consecutive points of polygon, say p1,p2,p3. Now I wanted to know whether the orthogonal between p1 and p3 is inside the polygon or outside the polygon. I am doing it by taking three vectors v1,v2 and v3. And the point before the point p1 in polygon say p0. v1 = (p0 - p1) v2 = (p2 - p1) v3 = (p3 - p1) With reference to this question, I am using the method shown in the accepted answer of that question. It is only for counterclockwise. What if my points are clockwise. I am also knowing my whole polygon is clockwise or counterclockwise. And accordingly I select the vectors v1 and v2. But still I am getting some problem. I am showing one case where I am getting problem. This polygon is counterclockwise. and It is starting from the origin of v1 and v2.

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  • Find a name in a list if the name is spelt wrong

    - by Matt
    I've got a list of names which some code checks against to see if the person exists, and if so do some stuff.. My issue is that I want to handle the case of the name being entered incorrectly.. I.e. I have a list of names Bob Frank Tom Tim John If I type in Joohn, I want it to ask me if I meant John. If I type Tm, I get asked if I meant Tim, if I say no, it asks if i meant Tom.. Etc.. Has anyone done something like this before?

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  • Sql server 2012 management studio is not showing me the Databasemail

    - by Sreejith
    I am trying to send mail through SQL server. But in my case when i expanded the SQL Server Logs i cannot find my Database mail. How can i do this Please help me guys. I tried so many ways for showing the database mail there.. i could get anything. Please help me guys. I tried the following codes too // To fix the run the following script: USE Master GO sp_configure 'show advanced options', 1 GO reconfigure with override GO sp_configure 'Database Mail XPs', 1 GO reconfigure GO sp_configure 'show advanced options', 0 GO Please find the below link to my snapshot of the SQL server 2012 management studio. I dont have Database mail there.. https://imageshack.com/i/f0xY6qH2p

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  • How do I handle a JSON request returning a String in JQuery?

    - by knt
    Hi all, New to json/jQuery so sorry if this has an obvious answer. I'm doing an ajax request in jQuery that's something like: $.ajax({ url: theURL, dataType: 'jsonp', type: 'get', success: function(data) { alert("it's there"); } }); The request asks whether a given object is in a database. If it is, it returns something of the format: { "text": "duck", "canonical_name": "duck", "language": { "id": "en" }} However, if the object isn't there, it returns: Not Found As in...literally that exact string, not in any kind of json format as far as I know. Is there any way I can get my ajax to detect this? Right now it doesn't even seem to be acknowledging that it got anything back in the latter case. The json code wasn't written by me. It can possibly be fixed if this is not the correct format and there's absolutely nothing I can do from my end to work with this, but I'd really like to try to find some kind of workaround if possible. Thanks very much!

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  • code optimization; switch versus if's

    - by KaiserJohaan
    Hello, I have a question about whether to use 'case' or 'ifs' in a function that gets called quite alot. Here's the following as it is now, in 'ifs'; the code is self-explanatory: int identifyMsg(char* textbuff) { if (!strcmp(textbuff,"text")) { return 1; } if (!strcmp(textbuff,"name")) { return 2; } if (!strcmp(textbuff,"list")) { return 3; } if (!strcmp(textbuff,"remv")) { return 4; } if (!strcmp(textbuff,"ipad")) { return 5; } if (!strcmp(textbuff,"iprm")) { return 6; } return 0; } My question is: Would a switch perform better? I know if using ifs, I can place the most likely options at the top.

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  • Encoding non-English characters

    - by Martin
    Hey there! I'm having a bit of trouble here and I was hoping someone throws me a hint :) I'm getting some GET VARS with JS but I have trouble with non-latin charsets: cyrillic for example. The cyrillic var appears correct in the url but when I retrieve it with JS I get some dummy string. I was wondering of a function similar to "unescape" for such a case. Alternatively, if someone knows a way I could convert a cyrillic string to the same dummy string I get from the URL, it will still do me the trick, since all I need is compare. :) Thanks! Martin

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  • Recording object method calls to generate automated test.

    - by Constantin
    I have an object with large interface and I would like to record all its method calls done during a user session. Ideally this sequence of calls would be available as source code: myobj.MethodA(42); myobj.MethodB("spam", false); ... I would then convert this code to a test case to have a kind of automated smoke/load test. WCF Load Test can do this for WCF services and CodedUI test recorder can do this for UIs. What are my options for a POCO class? I am in position to edit application code and replace the object in question with some recording/forwarding proxy.

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  • Alert on moving to a different page of a grid when user changes contents of textboxes in a Grid

    - by Ashish Gupta
    In a ASP.NET application I have a paging RadGrid which shows up textbox in each row. Outside the grid, there is an OK button to save the content of all the textbox. If user changes text in any one or more of the textbox and without clicking on the "OK" button, tries to move to a different page number (of the grid by clicking on the page number), he should be prompted for confirmation of save or cancel the changes. I am guessing that one can write a Javascript function which would look for any form input control (textbox in my case) and detect changes and If there are changes, would prompt the user. However, I am not sure where I can call this function from? Any suggestion on this or a better way to achieve this would be appreciated. I am using RadGrid but I guess this should be applicable to GridView as well.

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